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EP2923000B1 - Bloc de béton pouvant être empilé et procédé pour sa fabrication - Google Patents

Bloc de béton pouvant être empilé et procédé pour sa fabrication Download PDF

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Publication number
EP2923000B1
EP2923000B1 EP13785458.4A EP13785458A EP2923000B1 EP 2923000 B1 EP2923000 B1 EP 2923000B1 EP 13785458 A EP13785458 A EP 13785458A EP 2923000 B1 EP2923000 B1 EP 2923000B1
Authority
EP
European Patent Office
Prior art keywords
blocks
concrete
block
stones
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13785458.4A
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German (de)
English (en)
Other versions
EP2923000A2 (fr
Inventor
Evrard Josef FREDERICKX
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scheys Beton
Original Assignee
Scheys Beton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scheys Beton filed Critical Scheys Beton
Priority to HRP20170806TT priority Critical patent/HRP20170806T1/hr
Publication of EP2923000A2 publication Critical patent/EP2923000A2/fr
Application granted granted Critical
Publication of EP2923000B1 publication Critical patent/EP2923000B1/fr
Active legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0009—Shaping of preshaped articles

Definitions

  • the present invention concerns a stackable concrete block with an upper side provided with at least two peaks and a bottom side provided with at least two recesses that are located directly across from the aforesaid peaks.
  • the concrete blocks are thereby in brickwork bond, in layers, stackable on top of each other, wherein the peaks on the upper side of a first layer of blocks are engaged in the recesses in the bottom side of the blocks of a second superimposed layer of blocks for mutually fixing both layers of blocks.
  • Such independently stackable blocks that can be made into a wall, are known from practice and, for example, are marketed under the name Masterbloc.
  • These known blocks are solid, and therefore heavy, blocks that are manufactured in a mould.
  • By means of such a mould it is possible to provide the concrete peaks and the recesses that are located directly across from the peaks.
  • a disadvantage of such a moulding process is that the opening and closing of the moulds is a labour-intensive process and further, that with one mould only one block per day can be manufactured.
  • the moulds are also relatively expensive and can only be used for one type of block. This method of production can therefore only be used for fairly large concrete blocks.
  • the standard Masterbloc blocks have, for example, a size of 120X60X40 cm or of 150X75X40 cm.
  • a disadvantage of these blocks is that they are practically solid and therefore heavy and expensive and that they cannot be pressed, in contrast to the known hollow blocks. After all, using pressing it is not possible to provide corresponding recesses across from the peaks on the other side of the blocks.
  • the blocks are manufactured on universally applicable flat plates on which the blocks are left to cure after pressing. It is possible to provide the blocks with holes and/or peaks on the upper side by means of a stamp, yet it is impossible to produce blocks that have, like the Masterbloc blocks, peaks on the upper side and that have, across from these peaks, recesses with the same shape as the peaks in such a way that the peaks fit into these recesses.
  • Hollow concrete blocks pressed on a plate, for example, are known from EP 0 649 714 .
  • a raised edge is pressed on the bottom side of the block, that extends along the front side of the block.
  • an indentation is provided across from this raised edge by means of a slate, which can be pulled out of the mould.
  • a disadvantage of these blocks is that the blocks can slide sideways and that these blocks in the longitudinal direction of the wall, in contrast to the Masterbloc blocks, are therefore not attached to each other, not even if they are stacked using a brickwork bond. Hence, this is disadvantageous to the cohesion/rigidness of the wall that is formed by the dry (hence, without mortar or glue) concrete blocks stacked on top of each other.
  • the concrete blocks can again be somewhat laterally shift relative to each other.
  • the pins can therefore also not endure greater lateral tensile forces.
  • An advantage of the use of thin pins is that it is still possible to provide, in addition to the pins, relatively big continuous holes to thus again obtain light, hollow blocks that are, however, in contrast, for example, to the heavy Masterbloc blocks, not as easily stackable and that also do not form such a rigid system.
  • a second embodiment of the blocks according to US 7 712 281 they are provided with two peaks on their upper side. In the middle of these blocks between these two peaks, a continuous hole is provided, wherein further a continuous hole is formed again by two semi-continuous holes on the lateral ends of the blocks. Notwithstanding the fact that a number of blocks stacked into a wall (in a 1/3 rd brickwork bond) therefore cannot laterally shift anymore, relative to each other, the blocks form vertical arrays that are still not connected laterally. The wall is therefore still not resistant to tensile forces that are exerted on it in the longitudinal direction, which is detrimental to the rigidness of the wall.
  • This invention therefore aims to provide a new concrete block, which is provided, for example, like the Masterbloc blocks, on top with peaks and at the bottom with corresponding recesses in such a way that they can be stacked in relation to each other in order for the wall to withstand tensile forces, yet, in contrast to these Masterbloc blocks, can be pressed on flat plates.
  • the concrete block according to the invention is characterised that it is formed by a concrete base block, with at least two continuous holes that connect the upper side of the base block with the bottom side thereof, and that form said recesses in the bottom side of the block, and by at least two stones that fit at the top or bottom into said continuous holes and are provided to form said peaks.
  • peaks do not have to be provided anymore on the base block itself, but only the recesses for receiving the peaks, these base blocks can simply and inexpensively be pressed onto a flat plate, by means of a press. Furthermore, the continues holes can be made as large as desired, as the peaks are formed by the stones that are placed into these holes in such a way that, in contrast to the concrete blocks known from US 7 712 281 , adjacent to the continuous holes, no space needs to be provided for the peaks. Therefore, the blocks can be produced in a light and cheap fashion.
  • stones For shaping the peaks, stones are applied.
  • blocks of stones are meant, whereby the term "stone” should be understood as a hard substance with a mineral composition. Therefore, stone, for example, can be concrete, brick, natural stone or limestone.
  • the stones may including a reinforcement and may, for example, be made out of reinforced concrete.
  • stones for shaping the peaks offers the advantage that such stones, in comparison to, for example, plastic materials or metal forms of the same size, are remarkably cheaper, as well as more rigid, and are more resistant to aging.
  • stones for example, do not rust and they show no signs of aging as do plastic materials. Since the stones are made out of the same mineral material as the concrete base blocks, they can easily be recycled, when destructed.
  • the stones are manufactured from concrete.
  • manufacturing of these stones can also be done in a simple and cheap manner, especially by pressing these stones out of concrete into the desired shape, on a flat plate.
  • the continuous holes have a smallest diameter that is larger than 3 cm, preferably larger than 5 cm and more preferably larger than 7 cm.
  • the base blocks are provided to be attached to concrete, preferably tube-shaped anchoring blocks, wherein said base blocks and said anchoring blocks are provided with inter-engageable connection means for attaching said anchoring blocks to the base blocks and wherein said connection means preferably form a dove-tail joint.
  • these anchoring blocks can simply be attached to the rear side of the concrete blocks. After the filling of these anchoring blocks with, for example, a fine or coarse aggregate, these anchoring blocks provide a secure anchoring of the retaining wall into the ground behind, without the need for anchoring nets.
  • Such anchoring nets are not easy to install in the correct way (as they, for example, have to be properly tensioned) and further require complex fastening systems in the concrete blocks, even more so with the presence of the peaks, that make the manufacturing of the blocks more difficult (and may lead to more waste blocks).
  • the invention further relates to a set of stones and to a base block for composing a concrete block according to the invention and to a method for manufacturing such a concrete block wherein at least the base block is pressed out of concrete by means of a press on a flat plate.
  • the invention also relates to a wall, especially a ground retaining wall, which is made with concrete blocks according to the invention, in particular by dry (i.e., without adhesives) stacking the concrete blocks in layers using a brickwork bond.
  • the invention generally relates to a concrete block 1 with an upper side provided with at least two peaks 2 and a bottom side with at least two recesses 3 that are located right across from the peaks 2.
  • the peaks 2 and the recesses 3 are mounted in such a way that a number of these concrete blocks 1 can stacked onto each other such that they form a wall.
  • the peaks 2 on the upper side of a layer of blocks fit into the recesses 3 in the bottom side of the layer of blocks 1 that is superimposed thereon, such that both layers of blocks are mutually fixed or, with other words, in such a way that there is no or virtually no mutual displacement possible of the blocks that are stacked on top of each other.
  • the concrete block 1 is formed by a concrete base block 4 and by at least two stones 5.
  • the base block 4 itself exhibits at least two continuous holes 6 that extend from the upper side of the base block 4 to its bottom side and that form the above described recesses 3 in the bottom side of the concrete block 1.
  • the stones 5 are provided to be mounted at the top in the continuous holes 6.
  • the stones 5 hereby protrude out above the upper side of the base block 4 and therefore form the protruding peaks 2 of the concrete block 1.
  • composition of the concrete blocks 1 from base blocks 4 and from stones 5 is that, because of this, the base blocks 4, and preferably the stones 5 as well, can be pressed on a flat plate by means of a press, which is considerably cheaper than when the concrete blocks have to be manufactured in a specific shape.
  • the stones 5 fit both into the upper side as well as in the bottom side of the continuous holes 6.
  • the stones 5 can be manufactured from different stone materials. For example, they can be manufactured from concrete or natural stone (for example from smaller natural stone waste). However, preferably, they are manufactured from concrete like the base blocks 4 themselves.
  • the height of the stones 5 could possibly be equal to the height of the base blocks 4, but in order to save material, the stones preferably have a smaller height.
  • the stones 5 preferably have a thickening 7 with which may rest on the upper side of the base block 4.
  • this thickening 7 can also be formed by a protruding edge, that is, for example, semi-circular in cross-sectional view. This edge can extend completely around the stone, but is preferably only provided at two sides that are right across from each other.
  • these thickenings have to be held, either at the bottom or at the top, in the holes 6.
  • these holes 6 thereto display a widening 8 at the bottom or upper side, preferably upper side, of the base blocks 4.
  • This widening may, for example, be formed by the fact that the continuous holes are conical, whereby the base blocks 4, for example, with the biggest openings of their continuous holes 6, may be oriented face downwards in such a way that the stones 5 with their thickening 7 keep resting on the upper side of the base block.
  • the stones 5 preferably contain an upper section 10 that is provided to fit into the continuous holes 6 at the bottom, a bottom section 11 that is provided to fit into the continuous holes 6 at the top and a middle section 12 that is located between the upper section 10 and the bottom section 11 and which forms the thickening 7 of the stones 5.
  • the upper section 10 and the bottom section 11 of the stones 5 display a bevelled end 10a and 11 a. In the figures these ends are only bevelled on three sides as the stones are pressed on a flat plate with one side and are therefore completely flat on that side.
  • the upper section 10 and bottom section 11 of the stones 5 display, between their thickening 7 and their bevelled ends 10a and 11 a, a substantially straight section 10b and 11 b with which the stones 5 fit into the continuous holes 6, with the above described clearance.
  • the continuous holes 6 preferably have a smallest diameter d, measured in a plane, parallel to the upper or lower side of the base block 4, that is larger than 3 cm, preferably larger than 5 cm, and more preferably larger than 7 cm. Because the stones 5 fit into these continuous holes, these have a corresponding dimension, and therefore have a minimal thickness, in such a way that they can provide a firm connection between the blocks. In comparison to, for example, metal or plastic pins, stones after all tend to have a smaller tensile or breaking strength. However, because they are inserted in concrete blocks according to the invention in the relatively big continuous holes, to form the relatively large peaks on top of the concrete blocks, they can be formed in a large way. The cost of these stones also remains limited because they can be manufactured out of stone, particularly out of concrete, which is very durable but still cheaper than metal or plastic material.
  • a flat plate 14 is shown on which a number of different concrete blocks 14 have been pressed.
  • This pressing happens by means of a so-called earth-moist concrete which makes sure that the blocks immediately maintain their shape in such a way that immediately after the pressing, the mould can be removed and the blocks can be left behind on the flat plate 14 in order to harden further.
  • the base blocks are therefore manufactured using a pressing process involving immediate demoulding.
  • the concrete blocks 1 that are shown in the figures have two peaks 2 at the top and two corresponding recesses 3 (formed by the continuous holes 6), that are located right across each other, in such a way that with these concrete blocks 1, with a half brickwork bond, a rigid wall 1 of dry stacked blocks can easily be obtained.
  • a wall 15 is shown in Figure 12 , wherein in that wall 15 a thicker pole 16 is formed with those blocks. Due to the peaks 12, and the connection with which the blocks are stacked on top of each other, the blocks are also firmly connected in the longitudinal direction of the wall.
  • more than two continuous holes 6 can be provided, for example, two rows of two, three, four or more continuous holes 6, and that these blocks can then be stacked on top of each other in all sorts of different brickwork bonds.
  • the blocks displayed in the figures can be approximately 40X20X12,5 cm in size, such multiple peak concrete blocks may be considerably larger, wherein due to the system of continuous holes each time an important weight decrease can be obtained.
  • the blocks can be pressed also the smaller blocks can be produced in large quantities in an economically responsible manner.
  • connection means are provided in the rear side for the attachment of concrete anchoring blocks 13.
  • the connection means are formed by two straight, vertical grooves 18 of which the sides form an undercut. Because of this, the grooves 18 form more particularly a cross-sectional dovetail-shaped space.
  • This anchoring block 13 is completely hollow and is tube-shaped (with a tube length that corresponds with the height of the base block 4).
  • the anchoring blocks are provided with straight, vertical, raised edges 19 on the front side that, in cross-section, have a shape that is complementary to the space in the grooves 18. In a cross-section view, these raised edges are therefore also dovetail-shaped. Due to the complementary form, the anchoring blocks 13 can be shoved with the raised edges 19 into the grooves 18 of the base blocks 14 so as to, through a dove-tail joint, get fixed to these base blocks 14.
  • the tube-shaped anchoring blocks 13 are preferably also on their rear side provided with two grooves 20 that are identical to the grooves 18 in the rear side of the base blocks 4. Because of this, multiple anchoring blocks 13 can be coupled to each other, dependent on the height of the retaining wall or, with other words, of the required anchoring of the retaining wall in the underlying ground. Due to the open shape of the anchoring block 13, these can easily be filled with a fine or coarse granulate, whereby this granulate not only ensures that the required weight is met, but also ensures that possible egress of ground water is quickly drained, which ensures that there will be no hydrostatic pressure on the retaining wall and thereby further successive freeze and thaw cycles will have less effect on the retaining wall.
  • the tube-shaped anchoring blocks 13 can also be pressed out on flat plates.
  • the same plates and the same presses can be used, wherein solely the press mould needs to be changed.
  • Figure 14 shows a range of concrete anchoring blocks 13 that were pressed on a flat plate.

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  • Engineering & Computer Science (AREA)
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Claims (15)

  1. Bloc de béton (1) avec un côté supérieur muni d'au moins deux protubérances (2) et un côté inférieur muni d'au moins deux parties en retrait (3) qui sont situées directement en travers desdites protubérances (2) d'une telle façon qu'une pluralité desdits blocs de béton (1), dans une liaison de briquetage, en couches, sont empilables les uns au-dessus des autres, dans lequel les protubérances (2) sur le côté supérieur d'une première couche de blocs de béton (1) sont en prise dans les parties en retrait (3) dans le côté inférieur des blocs de béton (1) d'une seconde couche superposée de blocs de béton (1) pour mutuellement fixer les deux couches de blocs de béton (1),
    caractérisé en ce que ledit bloc de béton (1) est formé par un bloc de base de béton (4), avec au moins deux trous continus (6) qui relient le côté supérieur du bloc de base (4) au côté inférieur de celui-ci et qui forment lesdites parties en retrait (3) dans le côté inférieur du bloc de béton (1), et par au moins deux noyaux (5) qui s'ajustent dans lesdits trous continus (6) qui sont situés en haut et en bas et qui sont prévus pour former lesdites protubérances (2).
  2. Bloc de béton (1) selon la revendication 1, dans lequel lesdits noyaux (5) sont faits de béton.
  3. Bloc de béton (1) selon la revendication 1 ou 2, dans lequel lesdits noyaux (5) ont un épaississement (7) avec lequel ces noyaux (5), quand ils sont placés sur le dessus d'un bloc de base (4) dans un des trous continus (6) de celui-ci, reposent sur le côté supérieur de ce bloc de base (4).
  4. Bloc de béton selon la revendication 3, dans lequel lesdits trous continus (6) sur le côté supérieur et inférieur dudit bloc de base (4) ont un élargissement (8) pour maintenir l'épaississement (7) desdits noyaux.
  5. Bloc de béton (1) selon la revendication 4, dans lequel ledit élargissement (8) desdits trous continus (6) forme une partie en retrait (8) dans le côté supérieur dudit bloc de base (4).
  6. Bloc de béton (1) selon la revendication 5, dans lequel lesdites parties en retrait (8) dans lesdits trous continus (6) forment un épaulement (9), dans lequel lesdits noyaux (5) sont prévus pour reposer avec leur épaississement (7) sur lesdits épaulements (9).
  7. Bloc de béton (1) selon l'une quelconque des revendications 4 à 6, dans lequel lesdits noyaux (5) contiennent une section supérieure qui est prévue pour s'ajuster dans le fond dudit trou continu (6), une section de fond qui est prévue pour s'ajuster dans la partie supérieure dudit trou continu (6) et une section médiane (13) qui est située entre la section supérieure (10) et inférieure (11) et qui forme l'épaississement (7) desdits noyaux (5).
  8. Bloc de béton (1) selon la revendication 7, dans lequel lesdites sections supérieure (10) et inférieure (11) desdits noyaux (5) présentent une extrémité biseautée.
  9. Bloc de béton (1) selon l'une quelconque des revendications 1 à 8, dans lequel lesdits noyaux (5) s'ajustent dans lesdits trous continus (6) avec un jeu total (2S) d'au plus 10 mm, de préférence d'au plus 6 mm et le plus de préférence d'au plus 3 mm.
  10. Bloc de béton (1) selon l'une quelconque des revendications 1 à 9, dans lequel lesdits trous (6) ont un diamètre le plus petit (d) qui est plus grand que 3 cm, de préférence plus grand que 5 cm et plus de préférence plus grand que 7 cm.
  11. Bloc de béton (1) selon l'une quelconque des revendications 1 à 10, dans lequel lesdits blocs de base (4) sont prévus pour être attachés au béton, de préférence des blocs d'ancrage (13) en forme de tube, dans lequel lesdits blocs de base (4) et lesdits blocs d'ancrage (13) sont munis de moyens de connexion pouvant être mis en prise de façon mutuelle (18, 19) pour attacher lesdits blocs d'ancrage (13) aux blocs de base (4) et dans lequel lesdits moyens de connexion (18, 19) forment de préférence un joint à queue-d'aronde.
  12. Ensemble de noyaux (5) et d'un bloc de base (4) pour composer un bloc de béton (1) selon l'une quelconque des revendications 1 à 11.
  13. Procédé pour produire un bloc de béton (1) selon l'une quelconque des revendications 1 à 11, comprenant l'étape de pressage dudit bloc de base (4) à partir de béton au moyen d'une presse sur une plaque plate (14).
  14. Procédé selon la revendication 13, dans lequel ledit bloc de base (4) est presque immédiatement enlevé de la presse après pressage.
  15. Paroi (15), en particulier une paroi de retenue (17), fabriquée avec des blocs de béton (1) selon l'une quelconque des revendications 1 à 11.
EP13785458.4A 2012-10-31 2013-10-31 Bloc de béton pouvant être empilé et procédé pour sa fabrication Active EP2923000B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20170806TT HRP20170806T1 (hr) 2012-10-31 2013-10-31 Betonski blok koji se može naslagivati i metoda proizvodnje istog

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2012/0747A BE1021487B1 (nl) 2012-10-31 2012-10-31 Stapelbare betonblok en werkwijze voor het vervaardigen daarvan
PCT/EP2013/072771 WO2014068032A2 (fr) 2012-10-31 2013-10-31 Bloc de béton pouvant être empilé et procédé pour sa fabrication

Publications (2)

Publication Number Publication Date
EP2923000A2 EP2923000A2 (fr) 2015-09-30
EP2923000B1 true EP2923000B1 (fr) 2017-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13785458.4A Active EP2923000B1 (fr) 2012-10-31 2013-10-31 Bloc de béton pouvant être empilé et procédé pour sa fabrication

Country Status (8)

Country Link
US (1) US20150292206A1 (fr)
EP (1) EP2923000B1 (fr)
BE (1) BE1021487B1 (fr)
CA (1) CA2889038A1 (fr)
ES (1) ES2629387T3 (fr)
HR (1) HRP20170806T1 (fr)
RU (1) RU2015114365A (fr)
WO (1) WO2014068032A2 (fr)

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DE102009044412A1 (de) * 2009-10-05 2011-04-07 Aco Severin Ahlmann Gmbh & Co. Kg Rigolenkörper
US20160130810A1 (en) * 2014-08-01 2016-05-12 Just Biofiber Corp. Load bearing interlocking structural blocks and modular building system
CN107322779A (zh) * 2017-07-18 2017-11-07 江苏汤辰机械装备制造股份有限公司 一种pc构件自动化生产线及生产流程工艺
CA3075497A1 (fr) * 2017-09-14 2019-03-21 Jenner Innovation Pty Ltd Systeme de construction d'une structure porteuse
GB2579769B (en) * 2018-10-25 2023-08-23 Tectonic Facades Ltd Cladding panel
USD990714S1 (en) * 2019-04-24 2023-06-27 Takching Chan Brick
USD1079065S1 (en) * 2023-01-27 2025-06-10 Martin James Walters Insulated corner block

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US3430404A (en) * 1967-03-20 1969-03-04 George B Muse Apertured wall construction
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US4914876A (en) 1986-09-15 1990-04-10 Keystone Retaining Wall Systems, Inc. Retaining wall with flexible mechanical soil stabilizing sheet
CA2045953C (fr) * 1991-06-28 1995-12-19 Angelo Risi Raccord de blocs pour structures murales ou elements semblables
CA2092579C (fr) * 1992-08-27 1997-10-07 Jacques Rodrigue Clavette permettant de rendre solidaires deux blocs de maconnerie tout en decalant l'un par rapport a l'autre
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US6948282B2 (en) * 2003-01-09 2005-09-27 Allan Block Corporation Interlocking building block
US6996945B2 (en) * 2003-05-16 2006-02-14 Doty Steven E Self interlocking block system
US6821058B1 (en) 2003-06-24 2004-11-23 Keystone Retaining Wall Systems, Inc. Retaining wall block system and connector
US8413399B2 (en) * 2010-02-10 2013-04-09 Michael L. Kelley, Jr. Block combinable with other similar blocks to form a wall, and related systems and methods
JP2013521422A (ja) 2010-03-04 2013-06-10 キーストーン・リテイニング・ウォール・システムズ・インコーポレーテッド 擁壁

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Also Published As

Publication number Publication date
ES2629387T3 (es) 2017-08-09
WO2014068032A3 (fr) 2014-07-31
US20150292206A1 (en) 2015-10-15
HRP20170806T1 (hr) 2017-08-11
CA2889038A1 (fr) 2014-05-08
RU2015114365A (ru) 2016-12-20
BE1021487B1 (nl) 2015-12-02
WO2014068032A2 (fr) 2014-05-08
EP2923000A2 (fr) 2015-09-30

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